Compilare: main.cpp: In function 'std::vector<char> evaluare()': main.cpp:34:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<aux.size(); k++){ ~^~~~~~~~~~~ main.cpp:46:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<aux.size(); k++){ ~^~~~~~~~~~~ main.cpp:55:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<aux.size(); k++){ ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:71:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0; k<sol.size(); k++){ ~^~~~~~~~~~~